update proxy tests to build the url at runtime to avoid failing azdev scan

[jmccormick7]

azdev cred scan

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This checklist is used to make sure that common guidelines for a pull request are followed.

Related command

General Guidelines

• Have you run azdev style <YOUR_EXT> locally? (pip install azdev required)
• Have you run python scripts/ci/test_index.py -q locally? (pip install wheel==0.30.0 required)
• My extension version conforms to the Extension version schema

For new extensions:

• My extension description/summary conforms to the Extension Summary Guidelines.

About Extension Publish

There is a pipeline to automatically build, upload and publish extension wheels.
Once your pull request is merged into main branch, a new pull request will be created to update src/index.json automatically.
You only need to update the version information in file setup.py and historical information in file HISTORY.rst in your PR but do not modify src/index.json.

[github-actions]

The git hooks are available for azure-cli and azure-cli-extensions repos. They could help you run required checks before creating the PR.

Please sync the latest code with latest dev branch (for azure-cli) or main branch (for azure-cli-extensions).
After that please run the following commands to enable git hooks:

pip install azdev --upgrade
azdev setup -c <your azure-cli repo path> -r <your azure-cli-extensions repo path>

[github-actions]

• For more info about extension versioning, please refer to Extension version schema

[jmccormick7]

test_utils.py no longer flags for having secrets/credentials in the file.

test_utils.py was flagged for having secrets by the az dev pipeline run: https://dev.azure.com/azclitools/public/_build/results?buildId=336642&view=logs&jobId=a763532e-e1e4-51e7-f150-11e442419f5f&j=a763532e-e1e4-51e7-f150-11e442419f5f&t=37c61662-51af-58eb-5026-9f2fbee7b846

Secrets detected from src/connectedk8s/azext_connectedk8s/tests/unittests/test_utils_.py, Please remove or replace it. You can run 'azdev scan --confidence-level MEDIUM'/'azdev mask --confidence-level MEDIUM' locally to fix.